16 front 46 rear

hi guys can any won tell me how this combination will inprove my bike 16 front & 46 rear sproket . i read most people go with the 47 rear but i already have a 46? planning to go to france next month how will this affect my mpg ? i have a speedo healer to correct the mis reading seem fairly easy to install .have mod the air box k&n filter and have a pcv and auto tuner acro slip on. used won of the maps fronm pcv stie are there any good maps out there that would suite my set up! have some coperdog flies on order should arive soon.
 
Back
Top